Fred Harris goes behind the scenes at Boston software company Infocom. The developer has enjoyed great success with its line of text adventure games - the likes of Zork, Planetfall, Enchanter, and The Hitchhiker's Guide to the Galaxy - which eschew graphics in favour of a simple text display, and arcade gameplay in favour of what the company calls 'interactive fiction'. Game designer Dave Liebling - one of Infocom's founder members - is currently putting the finishing touches to a new game called Spellbreaker. He explains the processes that go in to making a good text-adventure game. This clip is from Micro Live, originally broadcast 29 November, 1985. You can play the 30th Anniversary edition of the Hitchhiker's Guide To The Galaxy Game here: https://www.bbc.co.uk/programmes/articles/1g84m0sXpnNCv84GpN2PLZG/the-game-30th-anniversary-edition For more retro computing programmes (and programs!), visit the rather wonderful BBC Computer Literacy Project archive, here: https://clp.bbcrewind.co.uk/ You have now entered the BBC Archive, a time machine that will transport you back to the golden age of tv to educate, entertain and enlighten you with classic tv clips from the BBC vaults. Make sure you subscribe so that you never miss a single stop on our amazing journey through the BBC Archive - null